Liver abscess caused by Burkholderia pseudomallei in a young man: A case report and review of literature

Pyogenic liver abscess is a common entity in Indian subcontinent and is mostly caused by gram negative bacteria. Melioidosis is not commonly seen in India and only a few cases are reported. It can give rise to multiple abscesses at different sites including liver. We report a case of isolated liver abscess caused by Burkholderia pseudomallei (B. pseudomallei) in a 29-year-old recently diagnosed diabetic, immunocompetent male. Diagnosis was made by imaging and culture of pus aspirated from the abscess and he was treated with percutaneous pigtail catheter drainage followed by antibiotics (meropenem and trimethoprim-sulphmethoxazole). Melioidosis is an emerging infection in India and has high mortality rate, so early diagnosis and prompt management is warranted which requires clinical vigilance and an intensive microbiological workup. Clinicians should be aware of isolated liver abscess caused by B. pseudomallei in appropriate clinical settings.     

Undifferentiated intimal sarcoma of large systemic blood vessels: report of 14 cases with immunohistochemical profile and review of the literature

Intimal sarcoma (IS) is defined as a malignant tumor arising in the tunica intima of large blood vessels. In systemic circulation, the majority of IS develop in the aorta, where close to three fourths of published cases lack specific differentiation and are called undifferentiated intimal sarcomas (UIS). The remaining cases are intima-associated sarcomas of recognized types, also called differentiated intimal sarcomas (DIS). In this report, we further characterize UIS, including its immunohistochemical profile and results of comparative genomic hybridization. A total of 14 cases of UIS were collected from 17 medical institutions, including slides, blocks, electron photomicrographs, clinical abstracts, and reports of surgical pathology specimens and autopsies. The patients, 7 women and 7 men, were 41 to 85 years of age (median, 65.6 years). Twelve tumors arose from the aorta, one from the left external iliac and femoral arteries, and one in a large systemic vein (the venous tumor was included due to histologic similarity with the arterial lesions). Tumors ranged from 1 cm to over 10 cm in diameter. Histopathology was that of a largely necrotic, poorly differentiated epithelioid and pleomorphic malignant neoplasm relating to the tunica intima. Usually there was only a thin layer of viable tumor cells overlying a large thrombus. All tumors stained at least focally with the endothelial markers CD31 and Fli-1; however, there was otherwise considerable variability in immunophenotype. The distinctive histopathologic appearance of the primary luminal lesion was lost whenever tumor invaded outside the vessel wall (into adventitia and beyond) or in metastatic sites. Such extravascular tumors assumed a variety of patterns reminiscent of undifferentiated pleomorphic sarcoma (UPS; in older literature also known as pleomorphic malignant fibrous histiocytoma, MFH) or other distinct types of sarcomas, including osteosarcoma, angiosarcoma, and rhabdomyosarcoma. The results of comparative genomic hybridization were nonspecific. Eleven patients died of the disease, in an average of 11 months after diagnosis. Three patients are still alive and free of disease at 4, 16, and 27 years. UIS of large systemic vessels represents a distinct clinical entity where intraluminal sarcoma presents with thrombosis and occlusion of large vessels. It is associated with a highly characteristic, although not entirely specific, histology and immunohistochemical phenotype. The histogenesis of UIS is not certain; however, it seems that the cell of origin must leave the confines of the vessel wall to show altered morphology. Although there are rare long-term survivors, UIS behaves as a fully malignant neoplasm that is almost uniformly associated with metastases and tumor-related death.     

Neonatal survival of prenatally diagnosed exomphalos

Purpose  Exomphalos is a midline defect, with a viable sac composed of amnion and peritoneum containing herniated abdominal contents with an incidence of about 1 in 4,000 live births. Associated major abnormalities can be karyotypic, syndromic or structural in up to 70% of cases. The aim of this study is to determine the factors that influence survival of antenatally diagnosed exomphalos. Methods  All antenatally diagnosed and postnatally confirmed exomphalos registered with our fetal medicine unit, during 2002–2007, were reviewed. Both prenatal and postnatal outcomes were analysed. Results  Of 88 cases identified with exomphalos, 85 were prenatally diagnosed. Fifty-five of them died in utero (45 terminations, 5 spontaneous abortions and 5 still births). There were 33 live births (37.5%), 7 of which were premature (30–35/40 gestation). Five babies died before coming to surgery (all with major exomphalos as well as abnormal karyotype) while 28 were operated upon. Fourteen cases with minor exomphalos, all isolated, were primarily closed and all survived to discharge. Of 14 babies with major exomphalos, 4 were closed primarily. Nine required silo formation and six successfully underwent secondary closure (one of which had a prenatal diagnosis of giant ruptured exomphalos). Three died before closure, two from sepsis and multi-organ failure, and one from an undiagnosed tracheo-oesophalgeal cleft. All three deaths had antenatally diagnosed giant ruptured exomphalos and were less than 34/40 weeks gestation. One baby was managed conservatively with antiseptic solution applied to the sac and left to heal by secondary intention. There were 17 cases of isolated exomphalos (with no other structural abnormalities), all of which survived. Conclusion  Antenatal diagnosis of exomphalos is 96% sensitive. Severe karyotypic and structural abnormalities were present in all intra-uterine and early postnatal deaths. Overall survival to discharge was 28%. Both minor and isolated exomphalos carried a good prognosis. Isolated exomphalos was a better prognostic factor than severity of the exomphalos itself. Ruptured giant exomphalos were associated with a poorer outcome especially in premature babies.     

Non healing leg ulcer infected with Stenotrophomonas maltophilia: first reported case from India

Stenotrophomonas maltophilia is a recently described organism which was mainly reported either in nosocomial setup, or in immunosuppresed individuals. This was rarely reported as cutaneous pathogenic organism causing cellulitis-like lesion, paronychia, mucocutaneous ulcers and ecthyma gangrenosum in immunocompromised individuals. Here we describe a case of leg ulcer caused by S. maltophilia in an immuno-competent patient. The infection was possibly community acquired as the patient had no exposure to hospital environment. The bacillus was sensitive to cotrimoxazole and levofloxacin, and the patient was successfully treated with cotrimoxazole. Our case is unique not only because it is probably the first ever case of leg ulcer caused by S. maltophilia, but also because of its unusual occurrence in immunocompetent patient.     

Effect of Mannitol and Furosemide on Plasma Osmolality and Brain Water

Background: Mannitol and furosemide are used to reduce increased intracranial pressure (ICP) and to reduce brain bulk during neurosurgery. One mechanism by which these changes might occur is via a reduction in brain water content. Although mannitol and furosemide are commonly used in combination, there has been no formal evaluation of the interactive effects of these two drugs on brain water. The effect of mannitol and furosemide alone and in combination on water content of normal rat brain was examined.

Methods: The lungs of rats anesthetized with halothane were mechanically ventilated to maintain normal physiologic parameters. After baseline measurement of plasma osmolality, mannitol (1, 4, or 8 g/kg), furosemide (2, 4, or 8 mg/kg), or a combination of furosemide (8 mg/kg) and mannitol (1, 4, or 8 g/kg) was administered intravenously over approximately 15 min. One hour later, plasma osmolality was measured, the animals were killed, and brain water content was determined by wet and dry weight measurements.

Results: Mannitol produced a dose-dependent increase in plasma osmolality and reduction of brain water content. There was a linear relation between plasma osmolality and brain water content. Furosemide alone did not affect plasma osmolality or brain water at any dose. The combination of furosemide with mannitol resulted in a greater increase in plasma osmolality than seen with mannitol alone and a greater decrease in brain water at 4 and 8 g/kg of mannitol.     

Evaluation of a fetomaternal–surgical clinic for prenatal counselling of surgical anomalies

With increasing ability to diagnose fetal anomalies, it is imperative that parents receive appropriate counselling to reach their decision. The aim of this study was to evaluate the fetomaternal–surgical clinic held jointly by an obstetrician and a paediatric surgeon. At this monthly clinic the patients are first scanned by the consultant fetomaternal specialist in the presence of a consultant paediatric surgeon and subsequently counselled jointly in an adjacent quiet room. Other specialists such as geneticist and neonatologists provided further counselling where needed. All 43 parents who attended this clinic in the year 2005 were included in this study and were counselled by the same paediatric surgeon. A questionnaire was designed to assess the different aspects of service provided by this clinic. In this study the diagnosis was changed in 3 (7%) babies, 2 (4.6%) parents miscarried and 1 (2.3%) neonatal death occurred, unrelated to the surgical anomaly. The site of delivery was changed in 20 (48%) patients and the mode of delivery in 7 (10%). All 43 (100%) parents were satisfied with the fetal counselling, eight patients (18.6%) felt increased anxiety post-counselling and 95% had a better understanding of their unborn babies condition after counselling. Two (4.6%) parents decided to terminate the pregnancy due to complex fetal abnormalities, and 31 (72%) felt they understood the future pregnancy risks. Fifty-six per cent of parents felt that further counselling from religious person should be offered.     

Global paediatric surgery: meeting an unmet need—the response of the British Association of Paediatric Surgeons

Aim

Outline the response from an organisation regarding the unmet needs in global children’s surgery

Method

The burden of global surgical disease, whilst daunting, is becoming increasingly better defined as agencies, surgical colleges and professional specialty associations all attempt to increase capacity in terms of manpower, support education and find sustainable solutions to the deficit of health in treating women and children. However, definition of the problem does not in itself create change and similarly, humanitarian activities including volunteering by established surgical practitioners and other non-governmental organisations (NGOs) make only marginal improvement in the standards of care on offer at a global level.

Results

The International Affairs Committee, British Association of Paediatric Surgeons (BAPS) has had its target firmly set on investing in potential leaders within paediatric surgery in low- and middle-income countries (LMICs), and sharing elements of the educational programme made available for training within the UK and Ireland with the aim of contributing to the solutions of inequity in the surgical standards available to the world’s children.

Conclusion

This article outlines some of the practical steps that have been deployed by BAPS by way of sharing the responsibility for problem-solving at a global level. It also highlights the need for clarity in advocacy and the route through which effective communication can translate into wider and more effective delivery of surgical care for children.